12122203223321 has 4 divisors (see below), whose sum is σ = 12122952032100. Its totient is φ = 12121454414544.

The previous prime is 12122203223269. The next prime is 12122203223401. The reversal of 12122203223321 is 12332230222121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3757642679296 + 8364560544025 = 1938464^2 + 2892155^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122203223321 - 2³⁰ = 12121129481497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122203223521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374380106 + ... + 374412483.

It is an arithmetic number, because the mean of its divisors is an integer number (3030738008025).

Almost surely, 2^{12122203223321} is an apocalyptic number.

It is an amenable number.

12122203223321 is a deficient number, since it is larger than the sum of its proper divisors (748808779).

12122203223321 is an equidigital number, since it uses as much as digits as its factorization.

12122203223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748808778.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12122203223321 its reverse (12332230222121), we get a palindrome (24454433445442).

The spelling of 12122203223321 in words is "twelve trillion, one hundred twenty-two billion, two hundred three million, two hundred twenty-three thousand, three hundred twenty-one".